#define _LTTNG_ABI_H
#include <linux/fs.h>
+#include <linux/types.h>
/*
* Major/minor version of ABI exposed to lttng tools. Major number
* should be increased when an incompatible ABI change is done.
*/
#define LTTNG_MODULES_ABI_MAJOR_VERSION 2
-#define LTTNG_MODULES_ABI_MINOR_VERSION 5
+#define LTTNG_MODULES_ABI_MINOR_VERSION 6
#define LTTNG_KERNEL_SYM_NAME_LEN 256
#define LTTNG_KERNEL_SESSION_NAME_LEN 256
} __attribute__((packed));
enum lttng_kernel_syscall_entryexit {
- LTTNG_KERNEL_SYSCALL_ENTRYEXIT = 0,
- LTTNG_KERNEL_SYSCALL_ENTRY = 1, /* Not implemented. */
- LTTNG_KERNEL_SYSCALL_EXIT = 2, /* Not implemented. */
+ LTTNG_KERNEL_SYSCALL_ENTRYEXIT = 0,
+ LTTNG_KERNEL_SYSCALL_ENTRY = 1,
+ LTTNG_KERNEL_SYSCALL_EXIT = 2,
};
enum lttng_kernel_syscall_abi {
LTTNG_KERNEL_SYSCALL_ABI_ALL = 0,
- LTTNG_KERNEL_SYSCALL_ABI_NATIVE = 1, /* Not implemented. */
- LTTNG_KERNEL_SYSCALL_ABI_COMPAT = 2, /* Not implemented. */
+ LTTNG_KERNEL_SYSCALL_ABI_NATIVE = 1,
+ LTTNG_KERNEL_SYSCALL_ABI_COMPAT = 2,
};
enum lttng_kernel_syscall_match {
- LTTNG_SYSCALL_MATCH_NAME = 0,
- LTTNG_SYSCALL_MATCH_NR = 1, /* Not implemented. */
+ LTTNG_KERNEL_SYSCALL_MATCH_NAME = 0,
+ LTTNG_KERNEL_SYSCALL_MATCH_NR = 1, /* Not implemented. */
};
struct lttng_kernel_syscall {
} u;
} __attribute__((packed));
-#define LTTNG_KERNEL_EVENT_NOTIFIER_PADDING1 16
+#define LTTNG_KERNEL_EVENT_NOTIFIER_PADDING 32
struct lttng_kernel_event_notifier {
struct lttng_kernel_event event;
+ uint64_t error_counter_index;
- char padding[LTTNG_KERNEL_EVENT_NOTIFIER_PADDING1];
+ char padding[LTTNG_KERNEL_EVENT_NOTIFIER_PADDING];
+} __attribute__((packed));
+
+#define LTTNG_KERNEL_COUNTER_DIMENSION_MAX 4
+#define LTTNG_KERNEL_EVENT_NOTIFIER_NOTIFICATION_PADDING 32
+struct lttng_kernel_event_notifier_notification {
+ uint64_t token;
+ uint16_t capture_buf_size;
+ char padding[LTTNG_KERNEL_EVENT_NOTIFIER_NOTIFICATION_PADDING];
+} __attribute__((packed));
+
+enum lttng_kernel_key_token_type {
+ LTTNG_KERNEL_KEY_TOKEN_STRING = 0, /* arg: string_ptr. */
+ LTTNG_KERNEL_KEY_TOKEN_EVENT_NAME = 1, /* no arg. */
+ LTTNG_KERNEL_KEY_TOKEN_PROVIDER_NAME = 2, /* no arg. */
+};
+
+#define LTTNG_KERNEL_KEY_ARG_PADDING1 60
+#define LTTNG_KERNEL_KEY_TOKEN_STRING_LEN_MAX 256
+struct lttng_kernel_key_token {
+ uint32_t type; /* enum lttng_kernel_key_token_type */
+ union {
+ uint64_t string_ptr;
+ char padding[LTTNG_KERNEL_KEY_ARG_PADDING1];
+ } arg;
+} __attribute__((packed));
+
+#define LTTNG_KERNEL_NR_KEY_TOKEN 4
+struct lttng_kernel_counter_key_dimension {
+ uint32_t nr_key_tokens;
+ struct lttng_kernel_key_token key_tokens[LTTNG_KERNEL_NR_KEY_TOKEN];
+} __attribute__((packed));
+
+struct lttng_kernel_counter_key {
+ uint32_t nr_dimensions;
+ struct lttng_kernel_counter_key_dimension key_dimensions[LTTNG_KERNEL_COUNTER_DIMENSION_MAX];
+} __attribute__((packed));
+
+#define LTTNG_KERNEL_COUNTER_EVENT_PADDING1 16
+struct lttng_kernel_counter_event {
+ struct lttng_kernel_event event;
+ struct lttng_kernel_counter_key key;
+ char padding[LTTNG_KERNEL_COUNTER_EVENT_PADDING1];
+} __attribute__((packed));
+
+enum lttng_kernel_counter_arithmetic {
+ LTTNG_KERNEL_COUNTER_ARITHMETIC_MODULAR = 0,
+};
+
+enum lttng_kernel_counter_bitness {
+ LTTNG_KERNEL_COUNTER_BITNESS_32 = 0,
+ LTTNG_KERNEL_COUNTER_BITNESS_64 = 1,
+};
+
+struct lttng_kernel_counter_dimension {
+ uint64_t size;
+ uint64_t underflow_index;
+ uint64_t overflow_index;
+ uint8_t has_underflow;
+ uint8_t has_overflow;
+} __attribute__((packed));
+
+#define LTTNG_KERNEL_COUNTER_CONF_PADDING1 67
+struct lttng_kernel_counter_conf {
+ uint32_t arithmetic; /* enum lttng_kernel_counter_arithmetic */
+ uint32_t bitness; /* enum lttng_kernel_counter_bitness */
+ uint32_t number_dimensions;
+ int64_t global_sum_step;
+ struct lttng_kernel_counter_dimension dimensions[LTTNG_KERNEL_COUNTER_DIMENSION_MAX];
+ uint8_t coalesce_hits;
+ char padding[LTTNG_KERNEL_COUNTER_CONF_PADDING1];
+} __attribute__((packed));
+
+struct lttng_kernel_counter_index {
+ uint32_t number_dimensions;
+ uint64_t dimension_indexes[LTTNG_KERNEL_COUNTER_DIMENSION_MAX];
+} __attribute__((packed));
+
+struct lttng_kernel_counter_value {
+ int64_t value;
+ uint8_t underflow;
+ uint8_t overflow;
+} __attribute__((packed));
+
+#define LTTNG_KERNEL_COUNTER_READ_PADDING 32
+struct lttng_kernel_counter_read {
+ struct lttng_kernel_counter_index index;
+ int32_t cpu; /* -1 for global counter, >= 0 for specific cpu. */
+ struct lttng_kernel_counter_value value; /* output */
+ char padding[LTTNG_KERNEL_COUNTER_READ_PADDING];
+} __attribute__((packed));
+
+#define LTTNG_KERNEL_COUNTER_AGGREGATE_PADDING 32
+struct lttng_kernel_counter_aggregate {
+ struct lttng_kernel_counter_index index;
+ struct lttng_kernel_counter_value value; /* output */
+ char padding[LTTNG_KERNEL_COUNTER_AGGREGATE_PADDING];
+} __attribute__((packed));
+
+#define LTTNG_KERNEL_COUNTER_CLEAR_PADDING 32
+struct lttng_kernel_counter_clear {
+ struct lttng_kernel_counter_index index;
+ char padding[LTTNG_KERNEL_COUNTER_CLEAR_PADDING];
+} __attribute__((packed));
+
+#define LTTNG_KERNEL_COUNTER_KEY_LEN 256
+#define LTTNG_KERNEL_COUNTER_MAP_DESCRIPTOR_PADDING 32
+struct lttng_kernel_counter_map_descriptor {
+ uint64_t descriptor_index; /* input. [ 0 .. nr_descriptors - 1 ] */
+
+ uint32_t dimension; /* outputs */
+ uint64_t array_index;
+ uint64_t user_token;
+ char key[LTTNG_KERNEL_COUNTER_KEY_LEN];
+
+ char padding[LTTNG_KERNEL_COUNTER_MAP_DESCRIPTOR_PADDING];
} __attribute__((packed));
struct lttng_kernel_tracer_version {
char data[0];
} __attribute__((packed));
+#define LTTNG_KERNEL_CAPTURE_BYTECODE_MAX_LEN 65536
+struct lttng_kernel_capture_bytecode {
+ uint32_t len;
+ uint32_t reloc_offset;
+ uint64_t seqnum;
+ char data[0];
+} __attribute__((packed));
+
enum lttng_kernel_tracker_type {
LTTNG_KERNEL_TRACKER_UNKNOWN = -1,
#define LTTNG_KERNEL_STREAM _IO(0xF6, 0x62)
#define LTTNG_KERNEL_EVENT \
_IOW(0xF6, 0x63, struct lttng_kernel_event)
+/* LTTNG_KERNEL_SYSCALL_MASK applies to both channel and counter fds. */
#define LTTNG_KERNEL_SYSCALL_MASK \
_IOWR(0xF6, 0x64, struct lttng_kernel_syscall_mask)
#define LTTNG_KERNEL_CONTEXT \
_IOW(0xF6, 0x71, struct lttng_kernel_context)
-/* Event, Event notifier, Channel and Session ioctl */
+/* Event, Event notifier, Channel, Counter and Session ioctl */
/* lttng/abi-old.h reserve 0x80 and 0x81. */
#define LTTNG_KERNEL_ENABLE _IO(0xF6, 0x82)
#define LTTNG_KERNEL_DISABLE _IO(0xF6, 0x83)
+/* Trigger group and session ioctl */
+#define LTTNG_KERNEL_COUNTER \
+ _IOW(0xF6, 0x84, struct lttng_kernel_counter_conf)
+
/* Event and Event notifier FD ioctl */
#define LTTNG_KERNEL_FILTER _IO(0xF6, 0x90)
#define LTTNG_KERNEL_ADD_CALLSITE _IO(0xF6, 0x91)
/* Event notifier group file descriptor ioctl */
#define LTTNG_KERNEL_EVENT_NOTIFIER_CREATE \
_IOW(0xF6, 0xB0, struct lttng_kernel_event_notifier)
+#define LTTNG_KERNEL_EVENT_NOTIFIER_GROUP_NOTIFICATION_FD \
+ _IO(0xF6, 0xB1)
+
+/* Event notifier file descriptor ioctl */
+#define LTTNG_KERNEL_CAPTURE _IO(0xF6, 0xB8)
+
+/* Counter file descriptor ioctl */
+#define LTTNG_KERNEL_COUNTER_READ \
+ _IOWR(0xF6, 0xC0, struct lttng_kernel_counter_read)
+#define LTTNG_KERNEL_COUNTER_AGGREGATE \
+ _IOWR(0xF6, 0xC1, struct lttng_kernel_counter_aggregate)
+#define LTTNG_KERNEL_COUNTER_CLEAR \
+ _IOW(0xF6, 0xC2, struct lttng_kernel_counter_clear)
+#define LTTNG_KERNEL_COUNTER_MAP_NR_DESCRIPTORS \
+ _IOR(0xF6, 0xC3, uint64_t)
+#define LTTNG_KERNEL_COUNTER_MAP_DESCRIPTOR \
+ _IOWR(0xF6, 0xC4, struct lttng_kernel_counter_map_descriptor)
+#define LTTNG_KERNEL_COUNTER_EVENT \
+ _IOW(0xF6, 0xC5, struct lttng_kernel_counter_event)
/*
* LTTng-specific ioctls for the lib ringbuffer.